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Finding the Fourth Proportional to 563,540.84, 777,803.73 and 518,146.61

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Solution

The fourth proportional to 563,540.84, 777,803.73 and 518,146.61 is: 715,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,540.84 : 777,803.73 = 518,146.61 : x
  2. Step 2: Convert to fraction form
    563,540.84/777,803.73 = 518,146.61/x
  3. Step 3: Cross multiply
    563,540.84x = 777,803.73 × 518,146.61
  4. Step 4: Simplify right side
    563,540.84x = 403,016,365,944.86
  5. Step 5: Solve for x
    x = 403,016,365,944.86/563,540.84
  6. Step 6: Final answer
    x = 715,150.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.